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#include "Ramdom2.h"

FLASH_EraseInitTypeDef FlashErase;
uint32_t PageError;
uint32_t begin = 0;
#define Address (0x803F800)
int flag = 0;
int flag1 = 0;
int k = 0;
int g = 0;
int16_t i = 0;
uint8_t stage = 0;
uint8_t var = 0;
uint8_t var1 = 0;
uint16_t pwm = 0;
uint16_t getDigit(uint8_t dig)
{
    switch (dig)
    {
        case 0x00: return 0x3F;
        case 0x01: return 0x06;
        case 0x02: return 0x5B;
        case 0x03: return 0x4F;
        case 0x04: return 0x66;
        case 0x05: return 0x6D;
        case 0x06: return 0x7D;
        case 0x07: return 0x07;
        case 0x08: return 0x7F;
        case 0x09: return 0x6F;
        case 0x0A: return 0x77;
        case 0x0B: return 0x7C;
        case 0x0C: return 0x39;
        case 0x0D: return 0x5E;
        case 0x0E: return 0x79;
        case 0x0F: return 0x71;
        default: return 0x40;
    }
}
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef* htim)
{

    if (htim == &htim6)
    {
        HAL_GPIO_WritePin(GPIOD, 0xFF00, GPIO_PIN_RESET);
        HAL_GPIO_WritePin(GPIOB, GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15, GPIO_PIN_SET);
        uint16_t digit = 0;
        switch (stage)
        {
            case 0: digit = getDigit(i / 100); break;
            case 1: digit = getDigit(i / 10 % 10); break;
            case 2: digit = getDigit(i % 10); break;
        }
        HAL_GPIO_WritePin(GPIOD, digit << 8, GPIO_PIN_SET);
        HAL_GPIO_WritePin(GPIOB, 1 << (13 + stage), GPIO_PIN_RESET);
        stage++;
        stage = stage % 3;
    }
}


void AppInit()
{
    HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_1);
    HAL_TIM_Base_Start_IT(&htim6);
    HAL_TIM_Base_Start_IT(&htim7);
    FlashErase.NbPages = 1;
    FlashErase.PageAddress = Address;
    FlashErase.TypeErase = FLASH_TYPEERASE_PAGES;
    do
    {
        i = *(uint32_t*)(Address + begin);
        begin += 4;
    } while (i != 0xFFFFFFFF);
    begin -= 8;
    i = *(uint32_t*)(Address + begin);
}

void AppWork()
{
    static uint16_t pwm = 0;
    if ((HAL_GPIO_ReadPin(GPIOD, GPIO_PIN_0) == GPIO_PIN_SET) && (flag == 0))
    {
        k++;
        if (k > 11)
        {
            flag = 1;
            i++;
            if (i > 100)
                i = 100;
            htim1.Instance->CCR1 = i * 8000 / 100;
            pwm = (uint16_t)((float)i / 100);
            HAL_FLASH_Unlock();
            begin += 4;
            if (begin > 8000)
            {
                HAL_FLASHEx_Erase(&FlashErase, &PageError);
                begin = 0;
            }
            HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, Address + begin, i);
            HAL_FLASH_Lock();
        }
    }
    else if (HAL_GPIO_ReadPin(GPIOD, GPIO_PIN_0) == GPIO_PIN_RESET)
    {
        flag = 0;
        k = 0;
    }
    if ((HAL_GPIO_ReadPin(GPIOD, GPIO_PIN_1) == GPIO_PIN_SET) && (flag1 == 0))
    {
        g++;
        if (g > 5)
        {
            flag1 = 1;
            i--;
            if (i < 0) i = 0;
            htim1.Instance->CCR1 = i * 8000 / 100;
            pwm = (uint16_t)((float)i / 100);
            HAL_FLASH_Unlock();
            begin += 4;
            if (begin > 8000)
            {
                HAL_FLASHEx_Erase(&FlashErase, &PageError);
                begin = 0;
            }
            HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, Address + begin, i);
            HAL_FLASH_Lock();
        }
    }
    else if (HAL_GPIO_ReadPin(GPIOD, GPIO_PIN_1) == GPIO_PIN_RESET)
    {
        flag1 = 0;
        g = 0;
    }

}